/*
 *    Copyright (C) 2017 MINDORKS NEXTGEN PRIVATE LIMITED
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.mindorks.tensorflowexample.view;

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;

/**
 * Created by amitshekhar on 16/03/17.
 */

public class DrawRenderer {
    /**
     * Draw lines to canvas
     */
    public static void renderModel(Canvas canvas, DrawModel model, Paint paint,
                                   int startLineIndex) {
        paint.setAntiAlias(true);

        int lineSize = model.getLineSize();
        for (int i = startLineIndex; i < lineSize; ++i) {
            DrawModel.Line line = model.getLine(i);
            paint.setColor(Color.BLACK);
            int elemSize = line.getElemSize();
            if (elemSize < 1) {
                continue;
            }
            DrawModel.LineElem elem = line.getElem(0);
            float lastX = elem.x;
            float lastY = elem.y;

            for (int j = 0; j < elemSize; ++j) {
                elem = line.getElem(j);
                float x = elem.x;
                float y = elem.y;
                canvas.drawLine(lastX, lastY, x, y, paint);
                lastX = x;
                lastY = y;
            }
        }
    }
}

